【摘要】：陣列天線中平面反射陣天線和共形相控陣天線因其優(yōu)越的性能一直是無線通信等領(lǐng)域的研究熱點。通常,大型陣列全波仿真所消耗的資源較大。因此,迫切需要一種能夠?qū)崿F(xiàn)針對平面反射陣和共形相控陣天線的高效分析方法。本文的第一部分提出一種用特征電流作為全域基函數(shù)來高效地分析大型平面反射陣天線的方法。該方法利用反射陣單元結(jié)構(gòu)的相似性,構(gòu)造一組特征電流對矩量法(MOM)形成的矩陣進行降階,從而可以減少未知量。同時,在填充降階矩陣元素時引入插值技術(shù),進一步加速計算。本文的第二部分提出了一種改進的特征電流方法用于分析大型共形微帶相控陣天線的問題。相控陣天線采取強制加源的方式,利用傳統(tǒng)的特征電流方法并不能準(zhǔn)確地求解出電流系數(shù)。本文方法在此基礎(chǔ)上引入誤差補償,同時實現(xiàn)了計算精度的提高和計算資源的節(jié)省。此外,該方法還利用重復(fù)結(jié)構(gòu)阻抗矩陣的快速填充技術(shù)以及快速多極子技術(shù)進一步提高了該方法分析大型共形微帶相控陣天線的效率。最后,論文通過數(shù)值仿真結(jié)果驗證了本文方法分析平面反射陣天線和共形微帶相控陣天線的正確性與有效性。
[Abstract]:Planar reflector array antenna and conformal phased array antenna in array antenna have been the focus of research in wireless communication due to their superior performance. In general, large-scale array full-wave simulation consumes a large amount of resources. Therefore, an efficient analysis method for planar reflector array and conformal phased array antenna is urgently needed. In the first part of this paper, a method is proposed to analyze the large planar reflector antenna efficiently by using the characteristic current as the global basis function. This method uses the similarity of the element structure of reflection array to construct a group of characteristic currents to reduce the order of the matrix formed by the method of moments (mom) (MOM), thus reducing the unknown amount. At the same time, the interpolation technique is introduced when filling the reduced-order matrix elements to further accelerate the calculation. In the second part of this paper, an improved characteristic current method is proposed for the analysis of large conformal microstrip phased array antennas. The phased array antenna can not accurately calculate the current coefficient by using the traditional characteristic current method. On the basis of this method, error compensation is introduced, and the improvement of calculation precision and saving of calculation resources are realized at the same time. In addition, the fast filling technique of repetitive impedance matrix and the fast multipole technique are used to further improve the efficiency of analyzing large conformal microstrip phased array antennas. Finally, through the numerical simulation results, the correctness and effectiveness of the proposed method for analyzing planar reflector array antenna and conformal microstrip phased array antenna are verified.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TN820.15

【參考文獻】

相關(guān)期刊論文 前2條

1 闕肖峰;聶在平;;大型陣列結(jié)構(gòu)電磁特性分析的特征基函數(shù)方法[J];系統(tǒng)工程與電子技術(shù);2006年11期

2 宋玉明;曹偉;;改進型矩量法/雙正交模法混合技術(shù)及其在天線分析中的應(yīng)用[J];南京郵電學(xué)院學(xué)報;1992年04期

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本文編號：2472112